Let P = {4, 5, 6, 7, 8}, Q = {5, 6, 7}, and R = {1, 2}.
Find upper P union upper Q.
A. {1, 2,...
Mathematics, 22.10.2020 22:01 ykluhredd
Let P = {4, 5, 6, 7, 8}, Q = {5, 6, 7}, and R = {1, 2}.
Find upper P union upper Q.
A. {1, 2, 4, 5, 6, 7, 8}
B. {5, 6, 7}
C. {4, 5, 6, 7, 8}
D. empty set
Answers: 3
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Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0
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